200-MHz IF 11-bit fourth-order bandpass Delta capital sigma ADC in SiGe

200-MHz IF 11-bit fourth-order bandpass Delta capital sigma ADC in SiGe

This paper demonstrates the design of an integrated fourth-order bandpass sigma-delta converter, which is capable of digitizing a 200-kHz band at 200 MHz with 11-bit accuracy. The converter has been successfully fabricated in a 50-GHz SiGe bipolar technology, and the modulator consumes 21 mA at 3 V....

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Veröffentlicht in:IEEE journal of solid-state circuits 2000-07, Vol.35 (7), p.959-967
Hauptverfasser: Maurino, Roberto, Mole, Peter
Format: Artikel
Sprache:eng
Schlagworte:
Bandpass
Circuits
Consumption
Converters
Dynamic range
Intermediate frequency
Modulators
Silicon germanides
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Zusammenfassung:This paper demonstrates the design of an integrated fourth-order bandpass sigma-delta converter, which is capable of digitizing a 200-kHz band at 200 MHz with 11-bit accuracy. The converter has been successfully fabricated in a 50-GHz SiGe bipolar technology, and the modulator consumes 21 mA at 3 V. The converter is aimed at the digitization of wireless signals at a high first intermediate frequency with a wide dynamic range.
ISSN:0018-9200
DOI:10.1109/4.848204